Fun trivia: The first video ever uploaded to YouTube was filmed at the San Diego Zoo. It was uploaded to the website on April 23, 2005, at 8:37 p.m by Jawed Karim, one of the company's co-founders.

The 20-second clip, shot by Yakov Lapitsky, is hardly the harbinger of a social phenomenon that would change our society. But it is funny.

The first-ever YouTube video

Lapitsky's commentary is priceless, especially his closing thought: "Alright, so here we are in front of the elephants. The cool thing about these guys is that they have these really, really, really long, um, trunks. And that, that's cool. And that's all there pretty much is to say."

All there is to say? Hardly. YouTube now attracts more than 1 billion unique visitors a month to watch more than 4 billion hours of video each month. Seventy two hours of video are uploaded every minute.

On YouTube's eight year anniversary, its first video has accumulated more than 10.5 million views. The most-viewed video ever? It has 1.5 billion (and counting).